--- lib/libc/iconv/citrus_none.c.orig
+++ lib/libc/iconv/citrus_none.c
@@ -144,7 +144,7 @@
 		s[2] = (char)(idx >> 16);
 		*nresult = 3;
 	} else {
-		if (n < 3) {
+		if (n < 4) {
 			*nresult = (size_t)-1;
 			return (E2BIG);
 		}
